Home / 3,100.66-4,651.08-1,126.68

Finding the Fourth Proportional to 3,100.66, 4,651.08 and 1,126.68

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Solution

The fourth proportional to 3,100.66, 4,651.08 and 1,126.68 is: 1,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,100.66 : 4,651.08 = 1,126.68 : x
  2. Step 2: Convert to fraction form
    3,100.66/4,651.08 = 1,126.68/x
  3. Step 3: Cross multiply
    3,100.66x = 4,651.08 × 1,126.68
  4. Step 4: Simplify right side
    3,100.66x = 5,240,278.81
  5. Step 5: Solve for x
    x = 5,240,278.81/3,100.66
  6. Step 6: Final answer
    x = 1,690.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.